JIT

Remove assertion in _PyCode_CheckNoExternalState() #107

Job	Run time
Interpreter (Debug)	9m 52s
i686-pc-windows-msvc/msvc (Release)	12m 19s
i686-pc-windows-msvc/msvc (Debug)	20m 11s
x86_64-pc-windows-msvc/msvc (Debug)	20m 21s
x86_64-pc-windows-msvc/msvc (Release)	10m 49s
aarch64-pc-windows-msvc/msvc (Release)	18m 7s
x86_64-apple-darwin/clang (Debug)	13m 29s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 7s
aarch64-apple-darwin/clang (Debug)	15m 52s
x86_64-unknown-linux-gnu/gcc (Release)	7m 5s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 16s
aarch64-apple-darwin/clang (Release)	9m 27s
aarch64-pc-windows-msvc/msvc (Debug)	22m 27s
aarch64-unknown-linux-gnu/gcc (Release)	6m 43s
x86_64-apple-darwin/clang (Release)	13m 47s
	3h 19m 52s

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